A method of solution is perfect if we can foresee from the start, and even prove, that following that method we shall attain our aim.

There are some things so serious you have to laugh at them.

The theory of probabilities is at bottom nothing but common sense reduced to calculus.

解读：区分事务可控性，对可控之事精细谋划，预防风险；对不可控之事，忧愁无用，不如乐观豁达面对，合理调配心态与精力。

你对待员工的方式就是他们对待客户的方式。

什么是对立的结合，也是对立的分离。